"I thought he was really seeing the puck well, he was really tracking it well," Los Angeles coach John Stevens said. "It really kind of stabilizes your team, especially on the road when a team like Montreal comes hard. So he was terrific tonight."
Jeff Carter had a goal and two assists, and Adrian Kempe and Michael Amadio scored for the Kings (2-1-1).
WATCH: [All Kings vs. Canadiens highlights]
"It was pretty cool, opening night and me and the boys came out and played great, so a big two points," Campbell said.
Carey Price made 26 saves for the Canadiens (1-1-1), who went 0-for-4 on the power play.
"We definitely have to move the puck quicker," Montreal coach Claude Julien said. "And then when you get those shooting opportunities, you've got to shoot. I think there were times tonight where I felt our guys were trying to force those cross passes instead of maybe just put pucks at the net and trying to jump on those loose pucks."
Kempe scored to give Los Angeles a 1-0 lead at 3:56 of the first period. After coming out of the penalty box, he took a pass from Tyler Toffoli and skated down the left side before shooting past Price from the top of the left circle on a 2-on-1.