Cannot get car running after replacing the head gasket

My girlfriend recently had a leak in her head gasket, not enough to prevent the car from running, but it was losing coolant constantly and slowly losing oil. Got through changing out the gasket and reassembling the car but I can no longer get it to to turn over. At first I thought it might be off slightly from the correct timing, but I have reset the belt and the marks are all spot on. Any ideas on where I can start checking to figure out what this problem is? I have attached the marking alignments and a video of what it does when I try to start it.