Question: Which 2008 movie starring Robert Downey Jr. did Shane Mahan create special effects for?

Context paragraphs:
Iron Man (2008 film): Iron Man is a 2008 American superhero film based on the Marvel Comics character of the same name, produced by Marvel Studios and distributed by Paramount Pictures.  It is the first film in the Marvel Cinematic Universe.  The film was directed by Jon Favreau, with a screenplay by the writing teams of Mark Fergus and Hawk Ostby and Art Marcum and Matt Holloway.  It stars Robert Downey Jr., Terrence Howard, Jeff Bridges, Shaun Toub, and Gwyneth Paltrow.  In "Iron Man", Tony Stark, an industrialist and master engineer, builds a powered exoskeleton and becomes the technologically advanced superhero Iron Man.

Shane Mahan: Shane Patrick Mahan (born September 22, 1964) is an American special effects creator and creature designer and puppeteer and producer known for his work in special effects, creature concept design and for creating the bodysuits and effects for the characters in Avengers, Iron Man in the 2008 film of the same name.  and several other award winning and Oscar nominated movies including Pacific Rim and recently the live action version of Disney's "Jungle Book".

Casanova (LeVert song): "Casanova" is a 1987 single by LeVert, written and produced by Reggie Calloway.  It reached #5 on the "Billboard" Hot 100 singles chart and #9 on the UK Singles Chart, LeVert's only Top Ten on either chart.  It was Number One on the "Billboard" Hot Black Singles chart for two weeks, becoming the group's second Number One.  It has become a standard number for New Orleans brass bands following its popularization by the Rebirth Brass Band.  The song is featured in 1987's "The Pick-Up Artist", starring Robert Downey Jr. and Molly Ringwald, and appears on the soundtrack album of the Whoopi Goldberg movie "Fatal Beauty", released the same year.

Team Downey: Team Downey is an American production company founded by Robert Downey Jr. and Susan Downey that produces film and television properties.  David Gambino is the president of production.  Team Downey was based at Warner Bros. since its founding in 2010, but left in October 2016.  It will still be part of Warner Bros' "top priority projects" such as a live-action adaptation of "Pinocchio", and the sequel to "".

Special effects supervisor: A special effects supervisor (also referred to as a special effects coordinator or SFX Supervisor) is an individual who works on a commercial, theater, television or film set creating special effects.  The supervisor generally is the department head who defers to the film's director and/or producers, and who is in charge of the entire special effects team.  Special effects include anything that is manual or mechanically manipulated (also called "practical effects" or in camera effects).  This may include the use of mechanized props, special effects makeup, props, scenery, scale models, pyrotechnics and atmospheric effects: creating physical wind, rain, fog, snow, clouds etc.

Sherlock Holmes (soundtrack): Sherlock Holmes: Original Motion Picture Soundtrack is the soundtrack album to the 2009 film of the same name, directed by Guy Ritchie, starring Robert Downey Jr. and Jude Law.

2014 Toronto International Film Festival: The 39th annual Toronto International Film Festival was held in Canada from 4–14 September 2014.  David Dobkin's film "The Judge", starring Robert Downey Jr. and Robert Duvall was the opening night film. " A Little Chaos", a British period drama directed by Alan Rickman and starring Kate Winslet closed the festival.  More films for each section were announced on 12 August, with the line-up completed on 19 August.  A total of 393 films were shown, including 143 world premieres.  The first Friday was dubbed "Bill Murray Day", as festival organisers dedicated a day to the actor by screening a select number of his films for free.

Eric Oram: Eric Oram is an American Wing Chun Kung Fu practitioner and fight choreographer who introduced a new way of filming fight scenes in the film "" in which the actors fought with real strikes and attacks, which were then featured in slow motion at 500 frames per second in the final movie.  He has trained well known actors in Wing Chun such as Christian Bale for "Batman Begins", Jake Gyllenhaal, and in particular Robert Downey Jr. in "Iron Man" and "Sherlock Holmes" as his personal on-set consultant in numerous movies.  Oram has been credited for training Downey in Kung Fu since 2003.  as a way to beat his drug addictions He wrote a moving letter to judge and California Governor Jerry Brown in support of Downey's pardon.

Sherlock Holmes (2009 film): Sherlock Holmes is a 2009 British-American neo-noir mystery period action film based on the character of the same name created by Sir Arthur Conan Doyle.  The film was directed by Guy Ritchie and produced by Susan Downey and Dan Lin.  The screenplay, by Michael Robert Johnson, Anthony Peckham and Simon Kinberg, was developed from a story by Wigram and Johnson.  Robert Downey Jr. and Jude Law portray Sherlock Holmes and Dr. John Watson respectively.  In the film, set in 1890, eccentric detective Holmes and his companion Watson are hired by a secret society to foil a mysticist's plot to expand the British Empire by seemingly supernatural means.  Rachel McAdams stars as their former adversary Irene Adler and Mark Strong portrays villain Lord Henry Blackwood.

Susan Downey: Susan Nicole Downey (née Levin; born November 6, 1973) is an American film producer.  Until February 2009, she was Co-President of Dark Castle Entertainment and Executive Vice President of Production at Silver Pictures, Joel Silver's production company, but has since stepped down to work more closely with her husband, Robert Downey Jr. The couple have formed their own production house entitled Team Downey.

Supporting paragraphs: Shane Mahan Iron Man (2008 film)
Answer: Iron Man