I've seen all the reviews -- "overrated", "terrible". I enjoy this movie, but I do so because I watch it knowing that it is a wildly dramatic, romantic, epic tragedy.
If you enjoyed Pearl Harbor, or Gone With The Wind, you'll probably enjoy Legends of the Fall. All of the actors are beautiful, the cinemetography is amazing, and with the exception of Julia Ormond (who plays Susannah as weak and insipid), the actors all turn in great, underrated performances.
Brad Pitt, a fine actor who continues to be punished by critics for his sheer beauty, did a great job with a script that could have easily been over-acted - few actors could portray the depth of emotions he does and still seem masculine. Aidan Quinn was wonderful, playing the pathos of the "second fiddle" character with dignity and strength. He captured the essence of his character in a scene when he confronts his brother (Pitt) with the irony of his life: "I followed all the rules...and everyone still loved you best."
Anthony Hopkins is, as always, a joy to watch, though the scenes after his stroke are a little over-done. His ability to balance the tragedy of this character's illness with his strength is a testament to his talent.
So don't expect something edgy or action-based. Legends of the Fall is a great film, if you're know what your're getting when you buy (or rent) it.