Would me and my friend both at the age 12 be able to see a rated R movie if our parents buy the tickets and only me and my friend see the film before 6:00 be aloud?

Children under age 17 requires an accompanying parent or guardian (age 21 or older) to attend R rated performances. 25 years and under must show ID for R rated performances. In an effort to provide the most enjoyable experience for adults attending R rated movies in the evenings, no children younger than 6 will be admitted to these features after 6pm. Per the AMC Policy site.

I dont think thats how it works you would still have to show your ID ....but you can always try