Knocked Up

Call it bromance, if you must. But what you feel Seth Rogen feeling for Paul Rudd in "Knocked Up" (2007) is slightly more than platonic. Until the spell warps, they have the movie's only lovingly romantic chemistry, and for long stretches - especially during that suspenseful trip to Vegas - there's really every reason to believe that once their long true heart-to-heart is over, Katherine Heigl won't be the only character with child.

—WESLEY MORRIS