He has directed films including:
- Clue
- Nuns on the Run
- My Cousin Vinny
- The Distinguished Gentleman
- Greedy
- Sgt. Bilko
- Trial and Error
- The Fighting Temptations
- The Whole Nine Yards.
- The Last First Time (2012)
In 2008, it was announced that Lynn was to direct the 2009 comedy film
Wild Target. It was set to star Bill Nighy, Helena Bonham Carter and Rupert Grint in title roles, but after Bonham Carter dropped out because of filming conflicts, Emily Blunt took over her role. Since then new cast members such as Eileen Atkins and Rupert Everett have joined the all star cast, and the film is now due to be released in March 2009.