The actor told MTV News that The Twilight Saga: Breaking Dawn - Part 2 marks a historic moment in his life.
"Seriously, there are so many emotions going on inside of me right now," Lautner explained. "I don't know if I say 'sad'. I don't know if I say 'excited'. There are so many things. It's a weird feeling."
Lautner was also quizzed about a potential Twilight Saga reboot and offered advice to any actor who plays the werewolf Jacob in the future.
"I'll say 'Have fun', because this character has been unreal to me... Truly, I can't imagine a cooler character to play over the past few years. Have fun with it and enjoy it," he said.
The Twilight Saga: Breaking Dawn - Part 2 topped the US box office over the weekend, earning $141.3m overall.
Watch a trailer for the film below: