According to Deadline Hollywood:
Disney/Pixar’s 3D toon prequel Monsters University (playing in 4,004 theaters) received a coveted ‘A’ CinemScore from audiences to keep the positive chatter flowing. It opened to a gargantuan #1 with $29M Friday (including Thursday’s $2.6M late show tally) and a likely $79M weekend. That would make it Pixar’s second highest opening ever, behind only Toy Story 3. Yowza!