Heat a heavy-bottomed saucepan over medium flame. Pour oil and allow it to heat up.
Then add the popcorn kernels and stir it well, so that all the kernels are coated with oil. Cover the saucepan with a lid and wait for them to pop.
Once the kernels start popping, lower the flame and tip the lid just a touch to allow the steam to escape. Shake the pan a few times to cook the kernels evenly.
And when the popping sound slows down to about one pop every few seconds, turn the flame off.
Remove the lid and drizzle melted butter over the popcorns. Followed by lemon juice, lemon zest, green chilli and salt. Give it a good toss and pour it into the serving bowl.
Serve chilli and lemon popcorn right away. And enjoy it with your favourite movie!