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Ryan Reynolds is (not surprisingly) completely in love with his and Blake Lively's newborn baby girl!

The proud first-time father talked to E! News' Jesse Giddings Saturday at the 2015 Sundance Film Festival premiere of Mississippi Grind, gushing that being a dad is "amazing!"

"The best thing about it—well, everything's great about it," he said of parenthood. "The least impressive thing is the complete lack of sleep."

Of course, that's not to say that Ryan, 38, or new mama Blake, 27, are complaining about missing out on those Z's! At a party for Mississippi Grind held later that evening at Chase Sapphire on Main, Ryan admitted his little lady rendered him powerless before he ever even met her.

She has him wrapped around her little finger, he confirmed, adding with a laugh, "That started well before she was born!"

So how does Ryan keep in touch with Blake and the baby when he's traveling? And even though she's not even 1-month-old yet, has his daughter tried on her first pair of ice skates? (Don't forget, Ryan is Canadian!) Watch the clips above to find out!

For more Sundance 2015 coverage, tune in to E! News Monday at 7 and 11 p.m.