As one of the stars of 1998's The Truman Show starring Jim Carrey, relatively obscure thesp Laura Linney received some long-overdue exposure. Yet, the film — which grossed $125 million in North America and earned a handful of Oscar nominations — didn't give the actress the career boost some had anticipated. "Quite frankly," Linney tells TV Guide Online, "there wasn't a lot there for me."

That's not to suggest that the post-Truman era hasn't been a busy one for the Juilliard grad. In addition to shooting four independent films last year — including You Can Count On Me (opening today) — Linney appeared in the TNT flick Running Mates, reprised her role as Mary Ann in the upcoming third installment of Showtime's Tales of the City, and most recently, starred on Broadway in Uncle Vanya. And while none of these projects were on the grand scale of The Truman Show, Linney admits when it comes to choosing roles, size really doesn't matter.

"For me, it's always just about working on good things with good people, or something that I think is worthy to give a go at," says Linney, currently in Toronto filming the Showtime movie Black Iris. "It was about finding something that I could learn from and have a real experience doing."

Well, Linney certainly accomplished that goal (and then some) with You Can Count On Me, a heartwarming story about a bond between a brother (Mark Ruffalo) and sister (Linney). The film — which won the Grand Jury Prize at Sundance earlier this year — is generating a great deal of Oscar buzz for writer/director Kenneth Lonergan, as well as Ruffalo and Linney. And while it probably won't come close to matching Truman's box office haul, the film already is a huge success in Linney's eyes.

"We all hope it does well because we're all so proud to be a part of it," she says. "[But] at the end of the day, even if it doesn't do well, it's all good. I am just so amazed that I'm in this thing. These [projects] don't come along very often where you're just thoroughly proud of the entire experience and everyone in it."