Complex sentence: Sweeney goes into a similar outburst in January 2009 when being interviewed on Radio 4 about the Tom Cruise film Valkyrie--this time as a part of a rehearsed joke, clearly referring to the episode two years previously.
Split into simpler sentences: Sweeney goes into a similar outburst in January 2009 when being interviewed on Radio 4 about the Tom Cruise film Valkyrie. This time as a part of a rehearsed joke, clearly referring to the episode two years previously.