God love him, but for all the cringeworthy chats, awkward moments and bungled attempts at sex education, Jim's dad is, without a doubt, top of the pops. Who else would calmly council his horny offspring after catching him in flagrante with a pudding? Or whisk him off to casualty without judgement after an unfortunate hand/cock/superglue encounter? Sure, it's a little weird when your old man talks about 'petting the one-eyed snake', but for the most understanding, well-meaning father in film, you need look no further.

Fatherly advice: "Don't forget your penis cream."

See also: No, there's no one quite like Jim's Dad, but Julius Levinson in Independence Day might have made a good substitute in his youth.