Miramax’s Dimension label has sealed a two-picture deal with the comedy-writing team of Craig Mazin and Greg Erb, based on a pitch the company just acquired in a pre-emptive strike for what sources said was $400,000 against $700,000.The previous two pitches by the writers — who once ran Princeton’s humor magazine — are being made into films. The first was “Rocket Man,” which bows this fall from Buena Vista; second is the Penelope Spheeris-directed comedy “Senseless,” which stars David Spade and Damon Wayans. Miramax/Dimension is financing “Senseless.” Before reteaming, Mazin was a director of marketing at Disney and Erb was an advertising copywriter. The pitch Dimension just picked up is “Daddy’s Boy,” a comedy about a man in his late 20s who returns home to discover that his widowed mother is about to marry his former best friend from high school. The pair’s manager, Eric Gold, is expected to produce, and Gold/Miller partner Peter Safran is expected to executive produce. The second picture under the agreement will be “Fairy Godbrothers,” to star Marlon and Shawn Wayans. The comedy is about two guys who are magically transported into the world of fairy tales. CAA’s Jim Lefkowitz brokered the deal with Peter Safran and attorney Mitch Smelkinson.