Possible Clues:

• Seuss' Sam-__
• will._.__
• "___ Not Okay With This" (coming-of-age series)
• "___... Sasha Fierce" (Beyonce album)
• '___ a Camera'
• Beginning for this puzzle's five endings
• '-- a Rock' (1966 hit)
• Conclusion of a Cartesian conclusion
• Words on either side of 'what'
• ''__ Sam'' (Sean Penn film)