Real men have nothing to prove. (and they're not afraid to wear ties)

Big men come in unassuming packages. ( Buster Keaton, Don Knotts, etc.)
With the exception of Jackie Chan there is no one else today in movies who carries on buster keatons legacy. (Watch their movies and compare). Jackie Chan is actually a huge Buster Keaton fan. Unfortunately today a lot of actors who get leads in movies are male models who got breaks and would rather work on their appearances than their acting skills.
On the other hand I've also noticed that a lot of actors now playing in movies are the complete opposite, they're young, waifish girly male models with collogen injected lips and highlights (see eragon, and anything on cable TV). Do any of them do their own stunts? not really, most of it is green screens and stunt-doubles. If you have an open mind to black & white silent movies (most people don't at first) do yourself a favor and watch a Buster Keaton movie. Annette and I watched "Battling Butler" the other night and we laughed way more than we would at most current movies. I already want to get a box set of his movies. But on the other hand ...if you want to see something with hotpants, fast cars , bad acting, explosions and closet homosexuals, see anything with vin deisel (with the exception of "Saving Private Ryan"). If you like actors that make you think and actually show discretion in the roles they play and the directors they work with (While being manly) see the older movies with Kirk Douglas ( Detective Story, Champion, Lust for Life, Paths of Glory, Lonely are the Brave, etc.), Robert Mitchum (Night of the Hunter, Cape Fear) Sidney Poitier ( The Defiant Ones, A Raisin in the Sun) Glenn Ford (Blackboard Jungle), Chuck Connors (the Rifleman) TV show*, Andy Griffith and Walter Matthau ( A Face In the Crowd). These are some very enjoyable (but not exactly feel-good) movies that paved the way for other great movies, while at the same time surpassing most acting today. Don't be afraid to rent some of those old movies. You'll not be dissapointed.
Note: Read any Buster Keaton Bio on one of his fan sites and see how manly he actually was...just not in an obvious way.