‘Tis the weekend before Christmas, and the estimates are in. Disney’s Tron Legacy was way out in front with $18 million from its 3,451 locations. The 3D re-launch of the studio’s legendary 1982 film is now projected to take in $45 million through Sunday. Competing for Tron’s 3D screen space is Warner’s Yogi Bear, which opened to an estimated $4.7 million in 3,515 locations (though with fewer overall screens than Tron). The Fighter saw its screen count rise from 4 to 2,503 on Friday. The Oscar contender punched its way into third place with an estimate of $3.9 million. Black Swan closed out the top five $2.7 million. The new Sony release How Do You Know didn’t feel the love, tying for sixth place with The Tourist at an estimated $2.5 million from its 2,483 locations. Full details on this weekend’s box office – aka Avatar one year later – when you come back tomorrow.