Sledujeme film každý večer.

Because Czech verbs usually show the subject by their ending.
Sledujeme already means we watch / we are watching, so the pronoun my (we) is normally unnecessary.

You could say My sledujeme film každý večer, but that would usually add emphasis, like we watch a film every evening.

Sledujeme is the 1st person plural present tense form of the verb sledovat.

So:

• sleduji / sleduju = I watch / follow
• sleduješ = you watch / follow
• sleduje = he/she/it watches / follows
• sledujeme = we watch / follow
• sledujete = you (plural/formal) watch / follow
• sledují / sledujou = they watch / follow

In this sentence, it means we watch.

Both can be related to watching, but they work differently.

• sledovat + object = to watch, follow, observe something directly
  
  • Sledujeme film.
• dívat se na + object = to look at / watch
  
  • Díváme se na film.

So Czech has two common ways to express watching a film:

• Sledujeme film
• Díváme se na film

Both are natural. A learner should mainly notice that:

• sledovat takes a direct object
• dívat se needs na

Film is the direct object of the verb, so it is in the accusative case.

But for many masculine inanimate nouns, the accusative singular looks the same as the nominative singular. So:

• nominative: film
• accusative: film

That is why it appears unchanged.

In this sentence, každý večer means every evening and functions as a time expression.

Czech often uses the accusative for expressions of repeated time or duration, so:

• každý večer = every evening
• každý den = every day
• každý týden = every week

Here:

• každý is the masculine accusative singular form of každý (every)
• večer is accusative singular, but for this noun it looks the same as nominative

Because Czech often expresses frequency or repeated time without a preposition.

So English says:

• every evening

Czech simply says:

• každý večer

This is normal. You do not need a preposition like v here.

Here it clearly means a habitual / repeated action, because of každý večer (every evening).

Czech present tense can sometimes describe:

• what is happening now
• what happens regularly

The time phrase tells you which meaning is intended. Since it says every evening, the meaning is habitual: we watch a film every evening.

Yes. Sledovat is imperfective.

That fits well because the sentence describes a repeated, ongoing habit:

• Sledujeme film každý večer.

Imperfective verbs are normally used for:

• habits
• repeated actions
• ongoing processes

A perfective verb would not fit as naturally here for a regular repeated activity in the present.

Yes. Czech word order is flexible, because case endings help show the roles of words.

The basic neutral order here is:

• Sledujeme film každý večer.

But you could also say:

• Každý večer sledujeme film.
• Film sledujeme každý večer.

These all mean roughly the same thing, but the emphasis changes:

• Každý večer... emphasizes the time
• Film... emphasizes the object

Because Czech has no articles like English a/an/the.

So film can mean:

• a film
• the film

The exact meaning depends on context. In this sentence, English might translate it as a film, but Czech simply says film.

You could say:

• My sledujeme film každý večer.

But remember: my is usually omitted unless you want contrast or emphasis.

For example:

• Oni čtou, ale my sledujeme film každý večer.
  They read, but we watch a film every evening.

So adding my is possible, but not normally necessary.

A simple learner-friendly pronunciation guide would be:

• Sledujeme ≈ SLE-doo-ye-me
• film ≈ film
• každý ≈ KAZH-dee
• večer ≈ VE-chehr

A few useful notes:

• Czech stress usually falls on the first syllable of each word.
• j is pronounced like English y in yes.
• ž sounds like the s in measure.
• č sounds like ch in chair.

So the sentence is stressed roughly like: SLEdujeme FILM KAŽdý VEčer