Say my name, and I am broken. What am I?

I am a dream within a dream, where nothing’s ever what it seems, On the silver screen time runs slow, yet minds move fast, and layers deep are built to last. Kick me once and I may fall, but lose your grip you’ll lose it all.

I have a bucket that holds two gallons of water, a bucket that holds four gallons of water and a bucket that holds five gallons of water, Exactly how many buckets do I have?

I am an odd number. Take away a letter and I become even.

Three clues for three words, put them together and the answer you’ve heard. Mitochondria has the power here, or used to make a call. Flow’s companion to make tides fall. The going price something might be, or grade given for a service one seeks.