Paul Rudd - who turns 47 today - has played marijuana enthusiasts in movies like "Forgetting Sarah Marshall" (2008) and "Our Idiot Brother" (2011). So there are a lot of great cannabis moments to pick from his body of work.

But his best marijuana moment happened off set, but not (luckily for us) off camera. When promoting "I Love You Man" on Apr. 9, 2009, Rudd and co-star Jason Segel allegedly got high before doing an interview with the pop culture website Entertainment.ie. The segment includes Segel talking about his imaginary friend Gideon (who rides a unicorn) and Rudd attacking Segel with a mannequin. And those are some of the more coherent moments.

Somehow, the reporter stuck to his job and tried to salvage the interview, but at the end, even he had to admit that the whole thing might have to be cut. So were they actually high or just goofing off? Take a look at the clip below and tell us what you think.

h/t High Times