You can erase someone from your mind. Getting them out of your heart is another story.

Joel Barish, heartbroken that his girlfriend underwent a procedure to erase him from her memory, decides to do the same. However, as he watches his memories of her fade away, he realises that he still loves her, and may be too late to correct his mistake.
Eternal Sunshine of the Spotless Mind keeps every mind human — it fights its subject at zero distance. The story fights on E8 of the E0–E14 reality ladder, compressing memory, love, identity, technology.
Films fighting at the same level of reality, about the same things.
The same preoccupations examined at another scale — one mind versus a nation.
Other films that change a standing rule of their world — ranked first by those bending it at the same rung.