Tom Cruise is reprising his amazing Tropic Thunder character Les Grossman to be the "producer" of the Robert Pattinson himself, and it's all about his hair — though these days his famous locks are a lot shorter! Rob will be appearing during the show to debut a new Eclipse clip alongside Kristen Stewart and Taylor Lautner. We love to see Rob's sense of humor alongside one of Tom's funniest roles — warning, language NSFW. Tom and Rob fist bump? Awesome.