Please give me a correction of the sentences below. Thanks a lot.
1. I can clearly remember the first time I saw a horrible documentary film on the impact of global warming which shocked me a lot.
2. I could still remember the first time when I saw a horrible documentary featuring the impact of global warming which stunned me a lot.
These read as if you are distinguishing films about the impact of global warming that shocked/stunned you from other films about the impact of global warming that didn't shock/stun you. I doubt this is what you mean. You can say: I can clearly remember the first time I saw a documentary film about the impact of global warming.
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These read as if you are distinguishing films about the impact of global warming that shocked/stunned you from other films about the impact of global warming that didn't shock/stun you. I doubt this is what you mean. You can say:
I can clearly remember the first time I saw a documentary film about the impact of global warming. This shocked me a lot.