FAQ for
I Now Pronounce You Chuck & Larry (2007)

Originally, it was R because the MPAA finds anything related to homosexual content worthy of a higher rating. At the end, Chuck and Larry were actually supposed to kiss in the court room scene; they even filmed it that way. However, when a gay kiss between the two protagonists would earn them an R rating, they decided to go with the second ending they filmed, which is where Dan Akroyd interrupts them; this ending is in the theatrical release.

Yes he was.

Simple answer, no. Although the premise is very similar, this is most likely a coincidence. This however has caused some concern with the producers of Strange Bedfellows (2004) and it has been reported that they have considered filing a lawsuit.