Question: Which director acted in more films, Ricardo Costa or Barry Levinson? 

Context articles: Sam Levinson
Ricardo Costa (filmmaker)
Liberty Heights
Toys (film)
Louis DiGiaimo
The Wizard of Lies
Avalon (1990 film)
The Philanthropist (TV series)
Barry Levinson
Diner (film)

Samuel "Sam" Levinson (born 1985) is an American actor, screenwriter, and director.
 He is the son of Diana Rhodes and writer/director/actor Barry Levinson.
Ricardo Costa (born 25 January 1940) is a Portuguese film director and producer.
 He is the author of essays on cinema, vision, and language.
Liberty Heights is a 1999 comedy-drama by writer-director Barry Levinson.
 The film is a semi-autobiographical account of his childhood growing up in Baltimore in the 1950s.
 It is the fourth of Levinson's four "Baltimore Films" set in his hometown during the 1940s, 1950s, and 1960s: "Diner" (1982), "Tin Men" (1987), "Avalon" (1990), and "Liberty Heights" (1999).
Toys is a 1992 American fantasy comedy film directed by Barry Levinson, co-written by Levinson and Valerie Curtin, and starring Robin Williams, Michael Gambon, Joan Cusack, Robin Wright, LL Cool J, and Jamie Foxx in his feature film debut.
 Released in December 1992 in the United States, and March and April 1993 in the United Kingdom and Australia, respectively, the film was produced by Levinson's production company Baltimore Pictures and distributed by 20th Century Fox.
 Despite being called "Toys", the movie garnered a PG-13 rating from the MPAA for some language and sensuality.
Louis DiGiaimo (1938 – December 19, 2015) was an American casting director and film producer.
 He was one of the casting directors of Francis Ford Coppola's "The Godfather" and went on to help cast multiple films each for directors William Friedkin, Barry Levinson and Ridley Scott.
 He also produced Mike Newell's "Donnie Brasco" alongside Levinson and, in 1998, he won the Primetime Emmy Award for Outstanding Casting for a Drama Series for Levinson's television series "".
The Wizard of Lies is a 2017 American television drama film directed by Barry Levinson and written by Sam Levinson, Sam Baum, and John Burnham Schwartz, based on the non-fiction book of the same name by Diana B. Henriques.
 The film stars Robert De Niro as businessman Bernard Madoff, Michelle Pfeiffer as his wife Ruth Madoff, and Alessandro Nivola as their older son Mark Madoff.
 It aired on HBO on May 20, 2017.
Avalon is a 1990 drama film directed by Barry Levinson.
 It is the third in Levinson's semi-autobiographical tetralogy of "Baltimore films" set in his hometown during the 1940s, 1950s, and 1960s: "Diner" (1982), "Tin Men" (1987), "Avalon" (1990), and "Liberty Heights" (1999).
 The film explores the themes of Jewish assimilation into American life.
The Philanthropist was an American action drama series that premiered on NBC on Wednesday, June 24, 2009.
 The program was a limited summer series, principally filmed in South Africa.
 It opened to strong ratings, but saw a drop in viewers in subsequent weeks.
 "The Philanthropist" is a Carnival Films production in association with The Levinson/Fontana Company and Original Media.
 Tom Fontana, Barry Levinson, Peter Horton, Charlie Corwin, Gareth Neame, and Teri Weinberg served as executive producers.
Barry Levinson (born April 6, 1942) is an American filmmaker, screenwriter, and actor.
 Levinson's best-known works are comedy-drama and drama films such as "Diner" (1982), "The Natural" (1984), "Good Morning, Vietnam" (1987), "Bugsy" (1991), and "Wag the Dog" (1997).
 He won the Academy Award for Best Director for "Rain Man" (1988) which also won the Academy Award for Best Picture.
Diner is a 1982 American comedy-drama film written and directed by Barry Levinson.
 It is Levinson's screen-directing debut, and the first of Levinson's four "Baltimore Films" set in his hometown during the 1940s, 1950s, and 1960s. "
Tin Men" (1987), "Avalon" (1990), and "Liberty Heights" (1999) are the other three.